EP1680333B1 - Adjustable plastic carry strap having laterally projecting foldable handles - Google Patents
Adjustable plastic carry strap having laterally projecting foldable handles Download PDFInfo
- Publication number
- EP1680333B1 EP1680333B1 EP03758408A EP03758408A EP1680333B1 EP 1680333 B1 EP1680333 B1 EP 1680333B1 EP 03758408 A EP03758408 A EP 03758408A EP 03758408 A EP03758408 A EP 03758408A EP 1680333 B1 EP1680333 B1 EP 1680333B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strap
- handle
- foldable handles
- adjustable carry
- carry strap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D63/00—Flexible elongated elements, e.g. straps, for bundling or supporting articles
- B65D63/10—Non-metallic straps, tapes, or bands; Filamentary elements, e.g. strings, threads or wires; Joints between ends thereof
- B65D63/1018—Joints produced by application of integral securing members, e.g. buckles, wedges, tongue and slot, locking head and teeth or the like
- B65D63/1027—Joints produced by application of integral securing members, e.g. buckles, wedges, tongue and slot, locking head and teeth or the like the integral securing member being formed as a female and male locking member, e.g. locking head and locking teeth, or the like
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C13/00—Details; Accessories
- A45C13/30—Straps; Bands
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
- A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
- A45F3/14—Carrying-straps; Pack-carrying harnesses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D63/00—Flexible elongated elements, e.g. straps, for bundling or supporting articles
- B65D63/18—Elements provided with handles or other suspension means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/14—Bale and package ties, hose clamps
- Y10T24/1498—Plastic band
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
- Package Frames And Binding Bands (AREA)
- Handcart (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Punching Or Piercing (AREA)
- Brushes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
- The present invention relates to a strap having male and female end locking portions that can be manually secured so that the strap forms a closed loop, and handle portions that can be manually coupled in-situ to form one or more handles to facilitate manually lifting and carrying an object placed within the loop.
- It is necessary in many environments, to lift large, sometimes cumbersome objects manually, in the absence of machinery to perform such a task (such as a crane or forklift). Additionally, some objects, while heavy or awkward, may be too small to justify the use of a machine (such as a forklift) or are required to be moved in areas inaccessible to a machine, thus typically being left to be handled manually by a worker.
- For example, in a farm environment, while many chores can be at least partially automated, much manual labour is still typically required, such as moving objects from vehicles to a storage facility or vice versa. Some objects that may typically be used in such an environment, (such as a bucket), comprise integral handles of varying types to facilitate manual handling of the object. However, many tasks about an agricultural or industrial environment may require handling bulk materials, in a box, sack, or the form of a roll or cylinder just to name a few. Bulk materials in forms such as this can quickly become unwieldy, which makes the task for a worker more difficult and more dangerous. Stooping down to ground level to pick up a sack or roll of material will almost without doubt place a worker in a position in which he or she is at an increased risk for causing a painful injury in his or her back, or other part of his or her body. Any means for improving the difficult, comfort and safety levels of such a chore is desirable.
- A number of devices for either carrying and/or bundling objects are known.
US Patent No. 5695234 to Coticchio et al . describes a carrying device for shopping bags consisting of "loop forming element" (10) and two handles (12,14) having gripping portions (22 and 22') arranged on the longitudinal ends of the strap portion. The two handles mate with each other via projections 18 and sockets 24 (Figure 3 ) or a handle is inserted into a hole to form a noose around an object (Figures 10 and 11). The handles described by Coticchio are pre-formed, prior to use. -
US Patent No. 3493154 to Engle describes a flexible package carrying strap having a relatively wide width, but manufactured from one piece of material. There is a single handle on the strap of Engle, pre-formed at a longitudinal end of the strap. Adjustability is provided by multiple slots at one end into which the handle end fits. -
US Patent No. 4558896 to Farnworth describes a handle for attachment to a load, the handle having an open slot (28) for receiving a T-bar (26). The slot (24) is provided to allow the strap portion (12) to curve when in use (Figure 4 ). The handle portion of Farnworth is pre-formed, is arranged at a longitudinal end of the strap, and does not fold. -
US Patent No. 4514876 to Houlberg describes an injection moulded bag closure having two handle portions (3,4) attached to bag-carrying bars (1a,1b). The handles of Houlberg lock together (Figure 3 ) by means of hook and shoulder-shaped portions (6,7), thereby closing the mouth of the bag (which is already attached to the bag-carrying bars (1a,1b)). The widths of the handles of Houlberg are about as wide as the entire opening of the bag. -
US Patent No. 5735019 to Kerr et al . describe an assist handle to aid a user in carrying bags (such as Coticchio, above), having sling portion (10) across which bag handles lay. Handle cut-outs (17) are formed in longitudinal ends of the slit (10). A grip (40), is used to make using the device more comfortable, and to hold the two ends of the sling (10) together. -
US Patent No. 5715578 to Knudson describes a bundle tie having a rubber band loop (5) and one bar-shaped handle (3) arranged at one end of the loop (5). The handle of Knudson is a rigid bar, and the Knudson device ties by looping the handle (3) through the loop (5). -
US Patent No. 5005891 to Lunsford describes a bag handle apparatus with a purpose similar to that of Kerr and Coticchio. Lunsford's device comprises a relatively wide sheet (22) to distribute the weight of a load across a user's hand. Bag handles are placed in a centre portion of the sheet and the sheet is wrapped around the bag handles. The entire device acts as a cushion, and does not have any distinct handle. -
US Patent No. 5096248 to Ryan describes a bundling handle having a strap portion (11) and grip portion (8), among other features. The handle is used in a manner much like the bundling tie of Knudson (described above), in that the device attached to itself by looping around and through itself (Figure 4 ). A user lifts the device by inserting his or her hand into a pre-formed slot (17), which is arranged at a longitudinal end of the bundling handle of Ryan. -
US Patent No. 4696505 to Shadoan describes a handle and strap apparatus for hand-carrying articles. Shadoan has a strap portion that can be looped around various sizes and shapes of objects. The strap portion of Shadoan is a separate piece from the rigid handle portion, and connects to the rigid handle (10), which is arranged at an end of the strap portion, by looping through openings (34,36) therein. -
US Patent No. 6062622 to Susman et al . describe a handle clasp for bags consisting of a strap forming a loop around bag handles to be carried, the strap having a wider, in-line handle region (20), where it is held by a user, the handle region being pre-formed, prior to use. -
US Patent No. 1829613 to Sato describes a fastener, particularly for fastening stacks of material such as paper. Sato's fastener includes an elongate body with a single male portion and a mating head having a series of transverse slots for receiving the male portion. These multiple slots allow the length of the fastener to adjust to an appropriate size. Sato suggests the use of a malleable metal for his fastener. -
US Patent No. 3913179 to Rhee simply describes a tie strap without a handle, having a plurality of slots and tabs, incorporating T-slots 44,46 and 48. -
US Patent No. 487145 to Gibbons describes a halter for a horse that includes a strap (f), a distal T-head (k) and linear slots (1) to increase or decrease the length of the strap (f). -
US Design Patent No. 252,741 to Taylor is a US design patent that shows a tie strap without a handle, apparently having a plurality of linear longitudinal holes and two identical angled ends. It appears as though there would be two possible manners in which to affix the ends to a longitudinal hole, if desired. The smaller, most distal protrusion could act as a temporary fixing means that is more easily removed than the triangular portion, which could act as a bard and lock the sections together. - It is also known from
DE 7613358 U1 to provide an adjustable carry strap comprising all the features recited in the preamble to claim 1.US 5169199 also discloses an adjustable carry strap having a handle andDE 3014805 A1 discloses a strap and a separate handle. - Many people have a need for a simple and inexpensive way to handle bulky objects such as rolls of material, since even a simple roll of plastic can weight upward of 100 lbs. Thus, a device to facilitate handling of rolls of material, or other objects, that is small and inexpensive enough to be included with a roll of material or other object, is desired.
- An adjustable carry strap according to the invention is characterised by the features recited in the characterising portion of claim 1.
- Preferable features are recited in the dependent claims.
- Benefits to using the subject carry strap and handle include increased ease, comfort, stability and safety of an object to be carried, on the part of the user. If an object to be carried does not normally include a handle, one can easily be affixed to the object through use of the subject carry strap and handle. Accordingly, objects such as rolls of knitted netting or film having widths larger than a typical arm span of a user, that as a result are typically awkward to handle, become less awkward. Accordingly, a user will find a decreased need to place his or her body in a position likely to cause harm. This is important, especially considering the heft of objects often handled manually. Users handling of rolls of material, cylinders of compressed gas, sacks, crates, boxes, tubes, pipes, bundles and individual items (a section of a log, for instance) can all benefit from the subject carry strap and handle.
- Additional features and embodiments of the invention are discussed in detail below, with reference to the Figures.
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Figure 1 is a top view of a first embodiment of the present invention; -
Figure 2 is a top view of a second embodiment of the present invention; -
Figure 3 is a perspective view of the second embodiment of the present invention; -
Figure 4A is an enlarged partial view of an embodiment of the present invention; -
Figure 4B is an end view of an embodiment of the present invention; -
Figure 5 is a side view of a portion of the handle of one embodiment of the present invention; -
Figures 6A-6E illustrate various embodiments for the coupling portions at the second end of the carry strap according to the present invention; -
Figures 7A-7C illustrate various embodiments for the coupling portions at the second end of the carry strap according to the present invention; -
Figures 8A-8C illustrate various embodiments of the second ends of the strap portion according to the present invention. -
Figure 1 illustrates a top view of one embodiment of the present invention. Depending on the implementation, the subject carrystrap 100 may be used to lift rolls of material, to bundle and lift objects (such as sticks, for example), to lift boxes, or many other types of objects. - The adjustable carry strap and handle 100 includes an elongated and substantially
planar strap portion 110. In one embodiment, the second end has one or more longitudinally spacedmale coupling regions 120, with each coupling portion extending from opposedlateral sides 111 of the second end of thestrap portion 110. In this embodiment, the first end terminates in afemale portion 150 having anaperture 130 adapted to serially receive the male coupling region(s) 120 at the second end of the strap. Each of thecoupling portions 125, when inserted into theaperture 130, is capable of detachably engaging a portion of thefemale portion 150. - As seen in the embodiments
Figures 1 and4 , theaperture 130 at the first end of thestrap portion 110 for receiving the second end of thestrap portion 110 are T-shaped and includes aperpendicular portion 131 arranged substantially perpendicular to the longitudinal axis of thestrap portion 110 and alongitudinal portion 135 arranged substantially parallel to the longitudinal axis of thestrap portion 110. In this embodiment, theperpendicular portion 131 of the T-shapedaperture 130 is shorter than the longitudinal portion of the T-shaped aperture to facilitate insertion of thecoupling region 120 having a width greater than that of the perpendicular portion of the T-shapedaperture 130. In this case, the larger width of thecoupling portions 125 further secures the first and second ends of the carry strap and handle 100 to one another. The T-shapedaperture 130 may further comprisetails 133 arranged parallel to thelongitudinal portion 135, but at the ends of theperpendicular portion 131. Thesetails 133 facilitate the insertion of thecoupling portions 125, by creatingtabs 137 that, while still providing resistance to back-out by partially obscuring theaperture 130, also provide increased ease of insertion, as they are only connected to thestrap portion 110 along one edge. - When the mating
male coupling region 120 andfemale coupling portion 150 comprise protuberances such asmale coupling portions 125, that have a width wider than the location of the aperture in which themale coupling portions 125 ordinarily reside. Accordingly, when inserted into theaperture 130 of thefemale portion 150, the relatively widemale coupling portions 125 prevent uncoupling of themale coupling region 120 and thefemale portion 150. For example, in embodiments having substantially T-shapedapertures 130 and amale coupling region 120 havingmale coupling portions 125, the steps for attachment are typically as follows. First, themale coupling region 120, is rotated so as to align with thelongitudinal portion 135 of theaperture 130, and is inserted into theaperture 130. Themale coupling portions 125, while inserted in thelongitudinal portion 135, is rotated into alignment with theperpendicular portion 131 of theaperture 130. In this position, and with the strap in a state of tension, a first edge of themale coupling portions 125, abuts against the face of thefemale coupling portion 150 in regions to the side of theperpendicular portion 131. Since the length of thelongitudinal portion 135 is typically greater than that of theperpendicular portion 131, themale coupling region 120 is more easily inserted into this region and is more difficult to remove from theperpendicular portion 131, once fully inserted. Also, since typically, theperpendicular portion 131 is approximately the same width of thestrap portion 110, and the width at themale coupling portions 125 is larger than that of theperpendicular portion 131, resistance to pull-out is achieved. - The carry strap and handle 100 may be removed from the object to be carried by any of a variety of means, including cutting a portion of the carry strap and handle 100 or by disengaging the male and
female portions female portions - The
male coupling region 120 at the second end of the strap may, in alternate embodiments, comprise other means for attachment to the first end of the strap and/orfemale portion 150. In this case the sense of the terms "male" and "female" refers to two regions that are joined together. Such other means for attachment may include a buckle, snaps, hook-and-loop fasteners, staples, adhesive or any other practical means. Alternatively still, attachment of the first and second ends may be achieved with no additional component, for example, by welding, heat-welding, solvent-welding, or crimping the two ends together, depending on the particular embodiment. - In almost any embodiment, the carry strap and handle 100 can be configured to fit about two or more pre-selected circumferences of objects. For example, if a manufacturer sells rolls of material in varying amounts, say 100 yard and 300 yard rolls, then, naturally, the diameters and circumferences will be different. If the subject carry strap and handle 100 is to be used in this situation, then adjustability of the carry strap and handle 100 must be provided. One manner in which this need may be met is to include a series of
male coupling portions 125 or protuberances on the second end of the carry strap and handle 100. Eachmale coupling portion 125 allows coupling of the male andfemale coupling portions strap portion 110, if objects will be selected from two objects each having a different diameter, then only two coupling locations may be necessary. Thus, two or more sets ofmale coupling portions 125, each longitudinally spaced with respect to the longitudinal axis of thestrap portion 110, be used to determine the location at which the first and second ends of the carry strap and handle 110 will attach (and the resultant circumference of the strap). The positions of these tabs will typically correspond to the circumference(s) of objects to be lifted. - Furthermore,
male coupling portions 125 may be arranged in groups about two or more pre-selected longitudinal positions. That is, instead of just one pair ofmale coupling portions 125 near each position, multiple pairs ofmale coupling portions 125 may be arranged at each location. In this embodiment, additional tabs provide a tolerance for varying roll circumference. So, while a full range ofmale coupling portions 125 may not be needed, a desired level of adjustability is still achieved, without unnecessary material expense. It is to be understood that principles of the foregoing example embodiments, in which different arrangements ofmale coupling portions 125 are discussed, can be applied to alternate means for securing the first and second ends of the carry strap and handle 100 to each other (Such as snaps, hook-and-loop fasteners, etc.). - Alternatively, two or
more apertures 130 may be included on an enlarged or on multiplefemale coupling portions 150. As such, adjustability is provided. Yet further, the carry strap and handle 100 may be arranged such that it comprises a plurality ofmale coupling regions 120 and a plurality offemale coupling portions 150. Thus, the particular means by which adjustability is achieved may be selected by the user, and if desired, two or more male and female coupling portions 120,150 may be utilized at the same time to provide a redundant connection for safety reasons and/or to increase the carrying capacity of the device by distributing the stresses at one connection over a plurality of connections. - The carry strap and handle also includes a pair of laterally-protruding handle halves 140. Each handle half extends from opposed
lateral sides 111 of thestrap 100, and is substantially symmetrical to the other about a longitudinal axis of thestrap 100. The handles preferably lay flat prior to use and when not in use for space savings, and to facilitate stacking of thestraps 100 themselves and/or objects held by thestraps 100. - Each
handle half 140a,b may have a U-shape with two or more connectingportions 148 that are substantially perpendicular to the longitudinal axis of the strap, and onegrip portion 149 that is arranged between the two connectingportions 148. Thegrip portion 149 is laterally spaced from thelateral edge 111 of thestrap portion 110. This positioning forms aspace 147 large enough for a hand to fit into and grip thehandle 140. - Alternatively, the
handle halves 140a,b may comprise T-shaped handle portions connected to the strap by a single, centrally located connecting portion. With this embodiment, a user's fingers sit to each side of the connecting portion, rather than in-between two connecting portions, as with the above embodiment. Alternatively still, thehandle halves 140a,b may comprise loops to enable a user to grip the carry strap and handle, and the object to be lifted or semi-annular sections consisting of a generally arcuate handle halves attaching at each end to the strap. Such loops and semi-annular sections, U-shape and T-shape handles may be integrally formed with the strap itself or may be made from an additional component that is later attached to thestrap portion 110. Also, thehandle halves 140a,b may be made from a string-like material such as a rope that is attached to thestrap portion 110 via eyelets in thestrap portion 110. Of course, other shapes for thehandles 140 are possible, though not specifically described herein. - In each embodiment, the
handle halves 140a,b initially are coplanar with thestrap portion 110, and the two laterally opposedhandle halves 140a,b are adapted to fold together in-situ to an upright position to form the handle for the strap. In the case of U-shaped handle halves, for example, one or more creases 540 (Figure 5 ) may be formed to facilitate upright folding of the handle halves. Also to facilitate folding, an intermediate connecting portion 543 between theedge 111 of the strap and thehandle connecting portion 148, may have a reduced thickness. Further, the intermediate connecting portion 543 may be shaped such that it prevents folding beyond a pre-selected point, for example, the intermediate connecting portion 543 may have a triangular or trapezoidal profile (Figure 5 ). Such a configuration results in two "hinges," one on each side of the connecting portion 543, which, when in use, cause adjacent surfaces to fold toward and touch each other, causing interference which prevents the handle from folding beyond a pre-determined point. - The
handle halves 140a,b may be located near the first end of thestrap portion 110, near the second end of thestrap portion 110, or at an intermediate location between the first and second ends of thestrap portion 110. - Depending on the embodiment, the
handle 140 may comprise aflange portion 460 about one or more edges of the handle to provide increased rigidity and comfort for the user. Such aflange portion 460 typically includes a narrow band of an increased thickness along the edge of the handle. The additional material spaced from the middle of the handle helps resist bending stresses in and resulting deformation of thehandle 140. Theflange portion 460 may be located along an outer contour of thehandle 140 and/or along theinner contour 440 of thehandle 140. - When using the carry strap and handle 100, a user lifts each
handle half 140a,b from a normally flat position. If multiple carry strap and handles 100 are used, a user will typically grip one pair ofhandle halves 140a,b in each hand, and lift the object. If the carry strap and handle 100 is embodied such that the spacing between eachhandle half 140a,b is relatively large and/or if only one carry strap is used, the user will typically grip onehandle half 140a,b in each hand, and lift the object. - In some embodiments, the
grip portion 149 of thehandle 140 has an undulating contouredinner edge 440 adapted to comfortably fit against a user's fingers, such that when the carry strap and handle 100 is lifted by the user, the undulations prevent excessive sliding of the device about the-user's hands. Also, a gripping surface made from a textured or easily gripped material, such as rubber of the like, may be formed on or attached to the surface of thegrip portion 149 to reduce undesired movement of the handle about the user's hands. - Also as seen in
Figures 1-4 , the device may further include a pair oftabs 450 at the first end of the carry strap and handle 100. Thetabs 450 are adapted to secure an excess portion of the second end of thestrap 100 protruding through theaperture 130, to the surface of thestrap 100. Thetabs 450 extend upward from a first planar surface of thestrap 100. Thetabs 450 also may have inwardly projectingprotrusions 450 located at their upper ends. -
Figures 6A-6E illustrate various arrangements for the coupling portions at the second end of thecarry strap 100. Depending on the specific embodiment, each longitudinally spaced coupling portion at the second end of the strap may include a pair of laterally extending barbs 610 (Fig. 6A ) or laterally extending arrow-shaped locking portions 620 (Fig. 6B ) on opposite lateral edges of the strap in order to engage with theaperture 130. Alternatively,bosses 615, 617 (Figs 6C, 6D ) may replacebarbs 610. Alternatively still, each coupling portion at the second end of the strap may include a pair of angled notches 630 (Fig. 6E ) adapted to lockably engage a portion of theaperture 130. Theangled notches 630 have two legs 631,632. Afirst leg 631 is substantially perpendicular to the longitudinal axis of thestrap portion 110. Asecond leg 632 is oblique to the longitudinal axis of thestrap portion 110 such that a distal end of thesecond leg 632 is located closer to the longitudinal axis of the strap than a first end of thesecond leg 632. Thefirst leg 631 is capable of detachably engaging theaperture 130 at the first end of thestrap portion 110 to prevent loosening of the first and second ends of thestrap 130. Thesecond leg 632 allows a one-way ratcheting effect to facilitate tightening of the strap about the object to be lifted. -
Figures 7A-7C illustrate alternative means for attachment of the first and second ends of the carry strap and handle 100, which may includesnaps 710a,b, hook-and-loop fasteners 720a,b,staples 730 or adhesive. Alternatively still, attachment of the first and second ends may be achieved with no additional component, for example, by welding, heat-welding, solvent-welding, or crimping the two sections together, depending on the particular embodiment. -
Figures 8A-8C illustrate various embodiments of the second end of thestrap portion 110. The second end of the strap may terminate (1) in a surface that is oblique 810 to the longitudinal axis of the strap; (2) in a portion symmetrical relative to the longitudinal axis of the strap, having at least oneoblique portion 820; or (3) a surface that is substantially perpendicular to the longitudinal axis of thestrap 830. - In general, the length of the
strap portion 110 may be pre-selected to advantageously approximate a circumference around an object to be lifted. Alternatively, a distance between longitudinally spacedcoupling portions 125 may be pre-selected based upon the circumference of the object to be lifted. - The
handle halves 140a,b may be arranged on thestrap portion 110 near the first end of thedevice 100 and may automatically fold flat when not in use, into the plane of the strap. Agusset 145 may be affixed to and arranged between at least one lateral edge of the strap and at least one connecting portion of the handle, in order to strengthen the junction. - Depending on the embodiment, the subject carry
strap 100 may be used alone or in combination with other carry straps 100. The carry straps 100 may be connected end-to-end, or used in parallel on the same object. In the latter situation, two or more carrystraps 100 may be spaced apart along the length of an object by a distance approximately that of a user's outstretched arms, to allow the user to comfortably lift the object, with onehandle 140 of onecarry strap 100 in each hand. Alternatively, thecarry strap 100 may be relatively wide, or may have a wide section between the twohandle halves 140a,b of thecarry strap 100. This would provide a comfortable spacing betweenhandle halves 140a,b. Similar to the former application, this latter application allows ahandle half 140a,b to be gripped, one in each hand. - The entire carry strap and handle 100 may be manufactured from a single piece of material. Preferably, the material for fabrication is a plastic. Suitable plastics that may be used include Nylon, Polyolefins such as polyethylene (including low-density polyethylene (LDPE), high-density polyethylene (HDPE), ultra-low-density polyethylene (ULDPE), ultra-high molecular-weight polyethylene (UHMWPE), cross-linked polyethylene (PEX), polyethylene terephthalate (PET)) and polyproylene. Other plastics that are believed suitable include polyester, polyamides, polyvinylchloride (PVC), vinyl, and the like. Particularly preferred are polyethylene and polypropylene. Alternatively, materials for fabrication of the carry strap and handle may include rubbers, metals, paper, cardboard, composite materials and animal products, such as leather. Metals used may include aluminum, copper, steel, and alloys of these, and other metals.
- Also alternatively, the carry strap and handle 100 may be manufactured from a plurality of components, each being made from a different material. If the carry strap and handle 100 is manufactured from plastic, it may be cast, molded, shaped, for example by shearing and/or punching from flat stock, or formed by any other suitable means. If the carry strap and handle 100 is manufactured from metal, it also may be cast, stamped, or shaped, for example by shearing and/or punching.
- While certain embodiments are described herein, it will be readily apparent that minor changes of structure and operation can be made without departing from the scope of the invention, as defined by the appended claims.
Claims (19)
- An adjustable carry strap comprising an elongated, and substantially planar, plastic strap portion (110) having a first end, a second end, and a pre-selected width, the second end having one or more longitudinally spaced male coupling portions (125), adapted to matingly engage a female coupling portion (150), the first end terminating in the female coupling portion (150) having a width larger than the pre-selected width of the strap portion (110), the female coupling portion (150) having an aperture (130) adapted to serially receive each male coupling portion (125) of the second end of the strap portion (110), each of said male coupling portions (125), when inserted into the aperture (130) of the female coupling portion (150), being capable of detachably engaging a part of the female coupling portion (150) characterised in that each male coupling portion (125) extends from opposed lateral sides of the second end of the strap portion (110) and the adjustable carry strap includes foldable handles comprising a pair of handle half portions (140a,140b), each handle half extending from opposed lateral sides of the strap portion (110), and being aligned substantially symmetrically to one another about a longitudinal axis of the device, each handle half portion (140a,140b) having a U-shape with two or more connecting portions (148) substantially perpendicular to the longitudinal axis of the strap portion (110) and one grip portion (149) arranged between the two connecting portions (148), laterally spaced from the lateral edge of the strap portion (110), and substantially parallel to the longitudinal axis of the strap portion (110), the handle half portions (140a,140b) initially being coplanar with the strap and the two laterally opposed and symmetrically aligned handle half portions (140a,140b) being adapted to fold together in-situ to an upright position to form a handle for the strap portion (110).
- The adjustable carry strap with foldable handles of claim 1, wherein the handle half portions (140a,140b) comprise a grip region (149) having an undulating contoured inner edge adapted to comfortably fit against a user's fingers, such that when the device is lifted by the user, the undulations prevent excessive sliding of the device about the user's hands.
- The adjustable carry strap with foldable handles of claim 1, wherein each longitudinally spaced male coupling portion (125) at the second end of the strap portion (110) comprises a pair of laterally extending bars on opposite lateral edges of the strap portion.
- The adjustable carry strap with foldable handles of claim 1, wherein each longitudinally spaced coupling portion at the second end of the strap portion comprises a pair of laterally extending arrow-shaped locking portions on opposite lateral edges of the strap portion (110).
- The adjustable carry strap with foldable handles of claim 1, wherein each male coupling portion (125) at the second end of the strap portion (110) includes a pair of angled notches adapted to engage a portion of the aperture (130), the angled notches having two legs, a first leg being substantially perpendicular to the longitudinal axis of the strap portion (110), a second leg being oblique to the longitudinal axis of the strap portion (110) such that a second end of the second leg is located closer to the longitudinal axis of the strap than a first end of the second leg, the first leg being capable of detachably engaging the aperture (130) at the first end of the strap portion (110) to prevent loosening of the carry strap with foldable handles from about an object to be lifted, the second leg allowing a one-way ratcheting effect to facilitate tightening of the strap about the object to be lifted.
- The adjustable carry strap with foldable handles of claim 1, wherein the second end of the strap portion (110) terminates in a surface that is oblique to the longitudinal axis of the strap portion (110).
- The adjustable carry strap with foldable handles of claim 1, wherein the second end of the strap portion (110) terminates in a portion having at least one pair of oblique portions, arranged symmetrically about the longitudinal axis of the strap portion (110).
- The adjustable carry strap with foldable handles of claim 1, the second end of the strap portion (110) terminating in a surface that is substantially perpendicular to the longitudinal axis of the strap portion (110).
- The adjustable carry strap with foldable handles of claim 1, wherein the aperture (130) in the female portion (150) at the first end of the strap portion (110), for receiving the second end of the strap, is substantially T-shaped and comprises a perpendicular portion (131) arranged substantially perpendicular to the longitudinal axis of the strap and a longitudinal portion (135) arranged substantially parallel to the longitudinal axis of the strap.
- The adjustable carry strap with foldable handles of claim 9, wherein the perpendicular portion (131) of the T-shaped apertures (130) is shorter than the longitudinal portion (135) of the T-shaped aperture to facilitate insertion of a male coupling portion (135) having a width greater than that of the perpendicular portion (131) of the T-shaped aperture (130), the larger width of the male coupling portion (125) helping secure the first and second ends of the adjustable carry strap with foldable handles to one another.
- The adjustable carry strap with foldable handles of claim 1, further comprising a pair of tabs (450) at the first end of the strap portion (110), the tabs (450) adapted to secure an excess portion of the second end of the strap portion (110) protruding through the apertures (130), to the first end of the strap portion (110), the tabs (450) extending upward from a first planar surface of the strap, the tabs (450) having inwardly projecting protrusions (455) located at their upper ends.
- The adjustable carry strap with foldable handles of claim 1, wherein the length of the strap is pre-selected based upon a circumference of an object to be lifted.
- The adjustable carry strap with foldable handles of claim 1, wherein a distance between longitudinally spaced male coupling portions (125) is pre-selected based upon a circumference of an object to be lifted.
- The adjustable carry strap with foldable handles of claim 1, wherein the longitudinally spaced male coupling portions (125) are arranged in sections centered about predetermined longitudinal positions on the strap portion (110), each predetermined longitudinal position corresponding to a circumference of an object to be lifted.
- The adjustable carry strap with foldable handles of claim 1, wherein the handles are arranged on the strap portion (110) near the first end of the device.
- The adjustable carry strap with foldable handles of claim 1, wherein the handles (140a,140b) automatically fold flat when not in use, into a plane of the strap portion (110).
- The adjustable carry strap with foldable handles of claim 1, further comprising at least one gusset (443) affixed to and arranged between at least one lateral edge of the strap portion (110) and at least one connecting portion (147) of the handle.
- The adjustable carry strap with foldable handles of claim 1, wherein the adjustable carry strap with foldable handles is affixed to an object, in order to facilitate carrying the object.
- The adjustable carry strap with foldable handles of claim 18, wherein the object is a roll of knitted plastic netting.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2003/004713 WO2004103848A1 (en) | 2003-10-24 | 2003-10-24 | Adjustable plastic carry strap havinglaterally projecting foldable handles |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1680333A4 EP1680333A4 (en) | 2006-07-19 |
EP1680333A1 EP1680333A1 (en) | 2006-07-19 |
EP1680333B1 true EP1680333B1 (en) | 2008-07-02 |
Family
ID=33463002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03758408A Expired - Lifetime EP1680333B1 (en) | 2003-10-24 | 2003-10-24 | Adjustable plastic carry strap having laterally projecting foldable handles |
Country Status (12)
Country | Link |
---|---|
US (1) | US6976719B2 (en) |
EP (1) | EP1680333B1 (en) |
JP (1) | JP2006503774A (en) |
CN (1) | CN1692061A (en) |
AT (1) | ATE399722T1 (en) |
AU (1) | AU2003274428B1 (en) |
CA (1) | CA2487921C (en) |
DE (1) | DE60321976D1 (en) |
ES (1) | ES2305503T3 (en) |
MX (1) | MXPA05001246A (en) |
NO (1) | NO20050143L (en) |
WO (1) | WO2004103848A1 (en) |
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FR2880927B1 (en) * | 2005-01-18 | 2007-04-06 | Ghent Supply Nv | ELASTIC ELEMENT FOR FASTENING AND COHERENT ASSEMBLY OF SUCH ELEMENTS |
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-
2003
- 2003-10-24 US US10/509,159 patent/US6976719B2/en not_active Expired - Fee Related
- 2003-10-24 CN CNA2003801006109A patent/CN1692061A/en active Pending
- 2003-10-24 AU AU2003274428A patent/AU2003274428B1/en not_active Ceased
- 2003-10-24 EP EP03758408A patent/EP1680333B1/en not_active Expired - Lifetime
- 2003-10-24 ES ES03758408T patent/ES2305503T3/en not_active Expired - Lifetime
- 2003-10-24 WO PCT/IB2003/004713 patent/WO2004103848A1/en active IP Right Grant
- 2003-10-24 CA CA002487921A patent/CA2487921C/en not_active Expired - Fee Related
- 2003-10-24 JP JP2004572059A patent/JP2006503774A/en active Pending
- 2003-10-24 DE DE60321976T patent/DE60321976D1/en not_active Expired - Lifetime
- 2003-10-24 AT AT03758408T patent/ATE399722T1/en not_active IP Right Cessation
- 2003-10-24 MX MXPA05001246A patent/MXPA05001246A/en unknown
-
2005
- 2005-01-11 NO NO20050143A patent/NO20050143L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US6976719B2 (en) | 2005-12-20 |
ATE399722T1 (en) | 2008-07-15 |
CN1692061A (en) | 2005-11-02 |
MXPA05001246A (en) | 2005-07-05 |
NO20050143L (en) | 2005-01-11 |
EP1680333A4 (en) | 2006-07-19 |
US20050146149A1 (en) | 2005-07-07 |
WO2004103848A1 (en) | 2004-12-02 |
CA2487921C (en) | 2005-10-18 |
ES2305503T3 (en) | 2008-11-01 |
DE60321976D1 (en) | 2008-08-14 |
AU2003274428B1 (en) | 2004-12-13 |
JP2006503774A (en) | 2006-02-02 |
CA2487921A1 (en) | 2004-12-02 |
EP1680333A1 (en) | 2006-07-19 |
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